BUG at fs/jfs/namei.c:513 assert(ip->i_nlink)
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kernel BUG at fs/jfs/namei.c:513!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6415 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:jfs_unlink+0x9ea/0xa20 fs/jfs/namei.c:513
Code: e9 4c fb ff ff e8 76 4f 88 fe 48 c7 c7 a0 db 23 8b 48 c7 c6 60 d9 23 8b ba 01 02 00 00 48 c7 c1 e0 db 23 8b e8 97 cb f0 fd 90 <0f> 0b e8 4f 4f 88 fe 48 c7 c7 a0 db 23 8b 48 c7 c6 60 d9 23 8b ba
RSP: 0018:ffffc90004577c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff8880544397c0 RCX: d82bf03eef041e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004577d40 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520008aef25 R12: 0000000000000007
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008aef8c
FS:  0000555555750500(0000) GS:ffff888126df9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555577b648 CR3: 000000002755e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vfs_unlink+0x39a/0x660 fs/namei.c:4673
 do_unlinkat+0x345/0x570 fs/namei.c:4737
 __do_sys_unlink fs/namei.c:4783 [inline]
 __se_sys_unlink fs/namei.c:4781 [inline]
 __x64_sys_unlink+0x47/0x50 fs/namei.c:4781
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f09ded79467
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe46ec20d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f09ded79467
RDX: 00007ffe46ec2100 RSI: 00007ffe46ec2190 RDI: 00007ffe46ec2190
RBP: 00007ffe46ec2190 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe46ec3280
R13: 00007f09dede77dc R14: 0000000000029c11 R15: 00007ffe46ec4340
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_unlink+0x9ea/0xa20 fs/jfs/namei.c:513
Code: e9 4c fb ff ff e8 76 4f 88 fe 48 c7 c7 a0 db 23 8b 48 c7 c6 60 d9 23 8b ba 01 02 00 00 48 c7 c1 e0 db 23 8b e8 97 cb f0 fd 90 <0f> 0b e8 4f 4f 88 fe 48 c7 c7 a0 db 23 8b 48 c7 c6 60 d9 23 8b ba
RSP: 0018:ffffc90004577c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff8880544397c0 RCX: d82bf03eef041e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004577d40 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520008aef25 R12: 0000000000000007
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008aef8c
FS:  0000555555750500(0000) GS:ffff888126df9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555577b648 CR3: 000000002755e000 CR4: 00000000003526f0